Locomotive driving-fox.



P. A. WALSH.

M-Wlsb.

Patented Apr. 30, 1912.

2 SHEETS-SHBET 1.

P. A. WALSH.

LOCQMOTIVE DRIVING BOX.

APPLICATION FILED APR. 24, 1911.

Patented Apr. 30, 1912.

2 SHEETS-SHEET 2.

UNITED sTATEs PATENT OFFICE.

FRANK A. WALSH, OF MARSHALL, TEXAS, ASSIGNOR 0F ONE-HALF T0 J. E. VOTAW,

' OF MARSHALL, TEXAS.

LOCOMOTIVE DRIVING-BOX.

Specification of Letters Patent.

Patented Apr. 30, 1912.

' To all whom it may concern:

Be it'known that I, FRANK A. WALSH, a citizen of the United States, residing at Marshall, in'the county of Harrison and State of Texas, have invented certain new and useful Improvements in Locomotive Driving-Boxes, of which the following is a specification.

My invention relates to driving boxes and 006 erating parts of locomotive engines, and? the object is to provide boxes, shoes, and wedges which are easily and qulclzly knocked down for the purposes of. relin ng the shoes and wedges and other cooperating arts. p With boxes of the kind in general use, it is necessary from. time to time, after the engine has run several thousand miles, to take the en no to the shop for rep'alrs on account of Thteral wear. of the boxes and wheel hubs. It is necessary to take the boxes entirely out of the frames. In order to take the box out of the frame, it is necessary to take down the side or main rods, spring rigging, brake rigging, pedestal tie bars, and all parts that would interfere with the dropping of the wheels. The wheels have to be dropped down entirely out of the frame so that repairs can be made; The

same thin is true relative to the shoes and wedges when it is necessary to re-line the shoes and wed es on account of wear to correct cutting of flanges.

The principal advantage of my invention is that the shoe, wedge, and driving box can be repaired or renewed without even taking down the pedestal tie bar. This advantage will reduce the original cost and also the cost of maintenance, being a saving in the cost of material and a saving oflabor.

Other objects and advantages will be fully explained and the invention will be more particularly pointed out in the claims.

Reference is had to the accompan ing drawings which form a part of this app ication and specification.

Figure 1 is a side elevation of a portion of a main frame of a locomotive with the improved shoe, wedge, and driving box mounted therein, and also showing a box in common use. Fig. 2 is an enlarged horizontal section, taken along the line 00-11: of

Fig. 1. Fig. 3 is a front elevation of a driving box knocked down with the cellar and 1, showing a variation in the construction of the driving box. ,Fig. 9 is an enlarged horizontal section, taken on the line g of Fig. 8. Fig. 10 is a face view of the shoe and wedge retaining plates used with the box shown in Fig. 8. Fig. 11 is a face and a rear view of the box shown in Fig. 8. Fig. 12 is a detail view, partly in section, ofthe hinged plates, showing the manner of hinging the plates togethe Similar characters of reference are used to indicate the same parts throughout the several views.

A part of a locomotive frame is shown in the drawings'for the purpose of illustrating the application of the improvements. The frame 1 has provision for two driving boxes, a box A of the improved construction and a box. C of the kind in common use being shown. The box A is provided with a removable cellar 3 which is held in place by a retaining screw 4, an opening 20 being formed between the meeting faces of the cellar and one arm of the box for the screw 4. A flangeless shoe 7 and a flangeless wedge 8 are provided for centering the box in. the jaw. and the Wedge will take up wear from time to time. The position of the shoe and wedge is shown in" Fig. 2.' The shoe and wedge in commonuse have'flanges on both edges for engaging the frame.

by the flanges 21 of the box A and by retaining plates 9 and 10. The hub 13 of wheel 14- bears against t-he'bo'x A. The frame 1 is provided with wearing plates 15. The retaining plates 9 and 10 are hinged together and held in place by screws or 'bolts 22.

Attention 18 called to one of the advantages of the improved construction. In the old construction, the lateral thrust was taken up by the inner flanges of the box which flanges correspond to the flanges 21 while in the new construction, the lateral thrust is taken up by the plates 9 and 10 and The im-, 1 proved shoe and wedge are retained in place the bearing surface is increased approximately one-third.

The shoe 7 and wedge 8 having no flanges to bear against the pedestal, the side thrust is communicated transversely from the flanges 21 to shoe 7 and wedge 8 and then to retaining plates 9 and 10, which transmit it to the inner sides of the pedestals through screws or bolts 22, 2.2, which hold also the wearing plates 15 in position. With the improved construction, the box A and all cooperating parts are removable without removing'the pedestal tie-bar D. An exteriorly threaded sleeve 11 is provided for adjusting the wedge 8. The sleeve 11 operates through the pedestal tie-bar D and is provided with a lock-nut 16 by which the sleeve 11 may be fixed at the desired heightin the pedestal tie-bar D. A T-headed bolt 18' is provided for adjusting the wedge. This bolt 18 is of such design that 'it can be removed through the opening in the pedestal tie-bar I) through which the sleeve 11 operates. After the sleeve 11 is fixedly adjusted the wedge is then adjusted by the bolt 18 and secured in place by a. nut-23. wedge 8 has a recess for the head 19 of the bolt 18 and a semi-elliptical bearing plate or washer 17 is provided so that the wedge 8 can be perfectly alined on the sleeve 11, the plate being placed between the end of the sleeve 11 and the wedge. The wedge 8 and the shoe 7 may be removed for relining by removing the bolt 18 and the plates 9 and 10 without disturbing the pedestal. The shoe can be removed by simply removing the bolts from plate 9 and swinging the same on its hingewithout disturbing the plate 10 or wedge 8 and the wedge 8 can be removed by removing the bolts from plate 10 and swinging the same on its hinge withv out disturbing the shoe 7.

In the variation shown in Figs. 8 to 11 inclusive, the shoe 7 and wedge 8 are held in place respectively by plates 5 and 6 and the lateral thrust of the wheel is taken up by the flanges 12. The construction is otherwise the same as that shown in the previous views. The box 13 cannot be removed without removing the pedestal tie-bar D. The cellar 3 can be released and tilted forward or outward for the purpose of repairs without removing the box B. The cellar 3 is interchangeable in boxes A and B. The wearing plates 15 are common to both constructions of boxes A and B. These wearing plates rovide a greater thrust bearing for the driving boxes and may be renewed at any time without disturbing the frame 1 and they make the repairing of the cooperating parts more readily accessible.

Havln fully described my invention, what I c aim as new and desire to secure by Letters Patent, is,

1. A knock down driving boxfor locomo- The " thrust of the wheel.

tives having a removable cellar and a retaining screw therefor, a flangeless shoe and a flangeless wedge for. centering the driving box, and retaining plates .for said shoe and wedge and constituting the means of taking up the lateral thrust.

2. A driving box for locomotives comprising a box having flanges on the hub side thereof, a shoe and a wedge for centering said box, and bearing plates retaining said shoe and wedge in place and taking up the lateral thrust of the wheel.

3. A driving box for locomotives compris-' ing a box having flanges on the hub side thereof, bearing plates for taking up the lateral thrust of the wheel, and a flangeless shoe and a flangeless wedge retained in place by said flanges and bearing plates for centering the box.

4. In a driving box for locomotives, provided with a frame, a box mounted in said frame, a flangeless shoe and a flangeless wedge for centering said box in the jaws of said frame, and bearing plates attached to said frame for retaining said shoe and wedge in place and for taking up the lateral 5. In a driving box for locomotives, provided with a frame, a box mounted in said frame, bearing plates attached to said frame for taking up the lateral thrust of the wheel, and a flangeless shoe and a flangeless wedge held in place by said bearing plates for centering said box in the jaws of said frame.

6. In a driving box for locomotives provided with a frame having a recess therein, a box mounted in said frame and removable horizontally through said, frame, bearing plates attached to said frame for taking up lateral thrust of the wheel, and a flangeless shoe and a fiangeless wedge for centering said box in the jaws of said frame held in place by bearing plates.

7. In a driving box for locomotives, pro-- vided with a frame, a box mounted in and removable horizontally through said frame and having flanges on the hub side thereof,

hinged bearing plates attached to said frame, and a shoe and a wedge for centeringv said box in said frame.

8. In a locomotive driving box, provided with a. frame, a box mounted in and removable horizontally through said frame, hearing plates attached to said frame and retain ing said box in place, a shoe and a wedge for centering said box in said frame, an adjusting sleeve operating through said frame for varying the position of said wedge, and a rod operating through said sleeve for fixing said wedge in position.

9. In a locomotive driving box, provided with a frame, a box mounted in said frame, a shoe and a wedge for centering said box in said frame, an exteriorly threaded sleeve operatingthrough said frame for adjusting said wedge, 21 T-headed bolt operating the presence of two witnesses, this 17th day through said sleeve foi'1 fixing said wedge in of April, 1911.

osition, and asemi-e iptical arin late v l ietween said sleeve and said wedge fd i' silin- FRANK WALSH 5 ing said wedge said wedge having a recess Witnesses:

therein for the head of said bolt. A. L. JACKSON, In testimony whereof, I set my hand in J. W. STITT. 

